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Finding the Fourth Proportional to 7,347.81, 11,009.97 and 6,601.80

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Solution

The fourth proportional to 7,347.81, 11,009.97 and 6,601.80 is: 9,892.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,347.81 : 11,009.97 = 6,601.80 : x
  2. Step 2: Convert to fraction form
    7,347.81/11,009.97 = 6,601.80/x
  3. Step 3: Cross multiply
    7,347.81x = 11,009.97 × 6,601.80
  4. Step 4: Simplify right side
    7,347.81x = 72,685,619.95
  5. Step 5: Solve for x
    x = 72,685,619.95/7,347.81
  6. Step 6: Final answer
    x = 9,892.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.